Service isolate requests Observatory assets from embedder

runtime/bin/bin.gypi

Index: runtime/bin/bin.gypi
diff --git a/runtime/bin/bin.gypi b/runtime/bin/bin.gypi
index 49c0cb706996b4396d2f95cee42bf594de926a71..1da5912ce4aee5c02d14ab441679f1107e149a86 100644
--- a/runtime/bin/bin.gypi
+++ b/runtime/bin/bin.gypi
@@ -18,6 +18,8 @@
     'bootstrap_resources_cc_file':
         '<(gen_source_dir)/bootstrap_resources_gen.cc',
     'snapshot_cc_file': '<(gen_source_dir)/snapshot_gen.cc',
+    'observatory_assets_cc_file': '<(gen_source_dir)/observatory_assets.cc',
+    'observatory_assets_tar_file': '<(gen_source_dir)/observatory_assets.tar',
   },
   'targets': [
     {
@@ -202,6 +204,7 @@
         'generate_io_patch_cc_file#host',
         'generate_snapshot_file#host',
         'generate_resources_cc_file#host',
+        'generate_observatory_assets_cc_file#host',
       ],
       'sources': [
         'builtin_common.cc',
@@ -374,6 +377,7 @@
       'toolsets':['host'],
       'dependencies': [
         'generate_resources_cc_file#host',
+        'generate_observatory_assets_cc_file#host',
         'libdart_nosnapshot',
         'libdart_builtin',
         'libdart_io',
@@ -477,12 +481,40 @@
       ]
     },
     {
-      'target_name': 'generate_resources_cc_file',
+      'target_name': 'generate_observatory_assets_cc_file',
       'type': 'none',
       'toolsets':['host'],
       'dependencies': [
         'build_observatory#host',
       ],
+      'actions': [
+        {
+          'action_name': 'generate_observatory_assets_cc_file',
+          'inputs': [
+            '../tools/create_archive.py',
+            '<(PRODUCT_DIR)/observatory/deployed/web/index.html'
+          ],
+          'outputs': [
+            '<(observatory_assets_cc_file)',
+          ],
+          'action': [
+            'python',
+            'tools/create_archive.py',
+            '--output', '<(observatory_assets_cc_file)',
+            '--tar_output', '<(observatory_assets_tar_file)',
+            '--outer_namespace', 'dart',
+            '--inner_namespace', 'bin',
+            '--name', 'observatory_assets_archive',
+            '--client_root', '<(PRODUCT_DIR)/observatory/deployed/web/',
+          ],
+          'message': 'Generating ''<(observatory_assets_cc_file)'' file.'
+        },
+      ]
+    },
+    {
+      'target_name': 'generate_resources_cc_file',
+      'type': 'none',
+      'toolsets':['host'],
       'includes': [
         'resources_sources.gypi',
       ],
@@ -491,8 +523,6 @@
           'action_name': 'generate_resources_cc',
           'inputs': [
             '../tools/create_resources.py',
-            # The following two files are used to trigger a rebuild.
-            '<(PRODUCT_DIR)/observatory/deployed/web/index.html',
             '<@(_sources)',
           ],
           'outputs': [
@@ -501,13 +531,11 @@
           'action': [
             'python',
             'tools/create_resources.py',
-            '--compress',
             '--output', '<(resources_cc_file)',
             '--outer_namespace', 'dart',
             '--inner_namespace', 'bin',
             '--table_name', 'service_bin',
             '--root_prefix', 'bin/',
-            '--client_root', '<(PRODUCT_DIR)/observatory/deployed/web/',
             '<@(_sources)'
           ],
           'message': 'Generating ''<(resources_cc_file)'' file.'
@@ -557,6 +585,7 @@
         'build_observatory#host',
         'generate_snapshot_file#host',
         'generate_resources_cc_file#host',
+        'generate_observatory_assets_cc_file#host',
       ],
       'include_dirs': [
         '..',
@@ -572,6 +601,7 @@
         'vmservice_impl.h',
         '<(snapshot_cc_file)',
         '<(resources_cc_file)',
+        '<(observatory_assets_cc_file)',
       ],
       'conditions': [
         ['OS=="win"', {
@@ -626,6 +656,7 @@
         '<(io_cc_file)',
         '<(io_patch_cc_file)',
         '<(bootstrap_resources_cc_file)',
+        'observatory_assets_empty.cc',
         'snapshot_empty.cc',
       ],
       'conditions': [
@@ -661,6 +692,7 @@
         'libdart_builtin',
         'libdart_io',
         'generate_resources_cc_file#host',
+        'generate_observatory_assets_cc_file#host',
       ],
       'include_dirs': [
         '..',
@@ -679,6 +711,7 @@
         '<(io_cc_file)',
         '<(io_patch_cc_file)',
         '<(resources_cc_file)',
+        '<(observatory_assets_cc_file)',
         'snapshot_empty.cc',
       ],
       'conditions': [